E3S Web of Conferences 226, 00050 (2021) https://doi.org/10.1051/e3sconf/202122600050 ICoN BEAT 2019 Sweet Potatoes: Development and Potential as Alternative Food Ingredients in Karanganyar Regency, Indonesia Yoesti Silvana Arianti, and Yos Wahyu Harinta Faculty of Agriculture, Department of Agribusiness, Universitas Veteran Bangun Nusantara, Jl. Letjend Sujono Humardani No.1, Sukoharjo 57521, Indonesia Abstract. Sweet potato is a local food that can reduce dependence on rice and flour consumption. It is the main source of carbohydrates, after rice, cassava, flour and corn. The benefits and potency of sweet potatoes as alternative food needs to be developed, especially in rural areas. However, sweet potato has not been considered as an important and high economic value commodity in Indonesia. Sweet potatoes have been used as food and non-food raw materials in developed countries i.e. noodles, fried sweet potatoes, desserts, confectionery, soy sauce, flour, wine, vinegar, nata de coco, bioethanol and others. Around 89 % of sweet potatoes in Indonesia are cultivated for providing food to rural communities, the rest are used for industrial raw materials and animal feed. The content of sweet potatoes includes carbohydrates, vitamins, and minerals. Yellow/orange sweet potato is rich in beta-carotene and purple sweet potato contains anthocyanin (antioxidants). Sweet potato production is still limited to traditional food that is less attractive compared to flour products. Meanwhile, intermediate products have been developed including flour, instant flour, and starch that can be used as a substitute for flour in pastry products, wet cakes, breads, and noodles. Keyword: Consumption, flour, food diversification, intermediate product 1 Introduction Diversification program has been planned by the Indonesian government since 1974. This is due to the high consumption of rice by the community. Apart from rice, Indonesian people also consume a lot of wheat and various processed wheat. Therefore, the import figures for each year are quite high [1]. Food diversification will provide high benefits if it is able to explore, develop and optimize the utilization of local food sources and local wisdom. Indonesia has various types of food plants that can be grown under any conditions, but their existence is not really considered because they are not a staple food ingredient [2]. Amount one of the local food sources that can be developed is sweet potato. The ideal consumption of sweet potatoes in the Indonesian PPH–Pola Pangan Harapan [Food Hope Pattern] for 2012 is 100 g per capita d–1. Meanwhile, the real consumption of Indonesian about 40 g per capita d–1 or around 6 % of ideal consumption. Local food ingredients as Corresponding author: [email protected] © The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/). E3S Web of Conferences 226, 00050 (2021) https://doi.org/10.1051/e3sconf/202122600050 ICoN BEAT 2019 Indonesia's wealth need to be preserved for their cultivation and its benefits. At present, the grains group still dominates, so root consumption needs to be encouraged and increased thus the new PPH score reaching 75.5 in 2012 can meet the target score of 93.9 in 2014 and 100 in 2020 [5]. Sweet potato (Ipomoea batatas L. Lam.) is widely cultivated in various countries, including Indonesia, which ranks sixth as an important food ingredient after rice, wheat, potatoes, corn and cassava. Apart from being used as a source of carbohydrate food, sweet potatoes can also be used as industrial raw materials, raw materials for animal feed and alcohol production. This annual plant has a low glycemic index (IG) that is good for diabetics [6]. Food with a low glycemic index can be beneficial in reducing the incidences of chronic diseases [7]. Sweet potatoes may be beneficial to persons with type two diabetes, resulting from the high fiber and manganese content, which could aid in stabilizing blood sugar levels and reduce insulin resistance [8]. In addition, sweet potatoes is one of the Indonesian foodstuff rich in dietary fiber and olygosaccharides [9]. Besides having a role in the supply of food, sweet potatoes also can be used as industrial raw materials and animal feed. But the use of sweet potatoes is limited, that are considered as low products (inferior) such as raw materials for sauces and traditional foods such as boiled/fried sweet potato, kolak, getuk, timus and chips. Therefore, the utilization and consumption of sweet potatoes need to be improved through innovative diversification products that are attractive, nutritious, and have added value with simple technology [10]. The development of sweet potato products requires the support of the continuity and availability of these commodities. This paper aimed to reveal the growth of harvested area, production and productivity of sweet potato. It is expected to provide implications for sweet potato development opportunities in the future to support the success of accelerated food consumption diversification program in Karanganyar Regency. 2 Methods The data and information used in this paper were derived from secondary data from various sources as well as a review of research in the field of food diversification. The main data used was the growth of harvested area, production and productivity of sweet potatoes in Karanganyar Regency, Indonesia. Data collected by the documentation method that is studying, recording archives or data relating to research problems [11]. This method is carried out by taking data from relevant agencies, including Central Java Province BPS–Badan Pusat Statistik [Indonesia Statistics Agency], Karanganyar Regency Statistics, Karanganyar Regency Agriculture Office, Karanganyar Regency Food Security Agency and other secondary data derived from a review of research. Data were analyzed using a descriptive analysis method which is used to explain the facts and findings of the survey [11]. 3 Results and discussions 3.1 Growth of harvested area, production and productivity of sweet potatoes in Karanganyar regency 3.1.1 Harvest of sweet potatoes Sweet potatoes harvested areas in Karanganyar regency ranks fourth out of 25 districts and cities in Central Java Province. The average of sweet potato harvested areas in Karanganyar 2 E3S Web of Conferences 226, 00050 (2021) https://doi.org/10.1051/e3sconf/202122600050 ICoN BEAT 2019 Indonesia's wealth need to be preserved for their cultivation and its benefits. At present, the Regency in the period of 2012 to 2017 was 815 ha. The average share or contribution of the grains group still dominates, so root consumption needs to be encouraged and increased sweet potato harvest area in Karanganyar Regency compared to Central Java Province, thus the new PPH score reaching 75.5 in 2012 can meet the target score of 93.9 in 2014 and Indonesia was 10.67 %. 100 in 2020 [5]. Sweet potato (Ipomoea batatas L. Lam.) is widely cultivated in various countries, Table 1. Harvested area (ha) of sweet potatoes in Karanganyar Regency in including Indonesia, which ranks sixth as an important food ingredient after rice, wheat, 2012 to 2017 potatoes, corn and cassava. Apart from being used as a source of carbohydrate food, sweet potatoes can also be used as industrial raw materials, raw materials for animal feed and Year alcohol production. This annual plant has a low glycemic index (IG) that is good for 2012 2013 2014 2015 2016 2017 diabetics [6]. Food with a low glycemic index can be beneficial in reducing the incidences Harvested area (ha) 758 642 860 868 868 894 of chronic diseases [7]. Sweet potatoes may be beneficial to persons with type two diabetes, Share (%) 9.48 6.41 9.50 12.27 12.27 14.08 resulting from the high fiber and manganese content, which could aid in stabilizing blood Average growth per yr–1 (%) 4.516 sugar levels and reduce insulin resistance [8]. In addition, sweet potatoes is one of the Source: Statistics Indonesia, 2013 to 2018 Indonesian foodstuff rich in dietary fiber and olygosaccharides [9]. Besides having a role in the supply of food, sweet potatoes also can be used as industrial The average growth of sweet potatoes harvested area per year in Karanganyar raw materials and animal feed. But the use of sweet potatoes is limited, that are considered Regency is 4.52 %. Sweet potato harvested area in Karanganyar Regency ranks fourth after as low products (inferior) such as raw materials for sauces and traditional foods such as Semarang Regency, Magelang Regency and Wonosobo Regency [4]. Sweet potatoes have boiled/fried sweet potato, kolak, getuk, timus and chips. Therefore, the utilization and the advantage that is capable of adapting in less fertile and dry areas. consumption of sweet potatoes need to be improved through innovative diversification products that are attractive, nutritious, and have added value with simple technology [10]. 3.1.2 Sweet potato production The development of sweet potato products requires the support of the continuity and availability of these commodities. This paper aimed to reveal the growth of harvested area, In 2012 to 2017 the average sweet potato production in Karanganyar Regency was or production and productivity of sweet potato. It is expected to provide implications for sweet 30.26 t. These conditions make Karanganyar Regency the largest contributor of sweet potato development opportunities in the future to support the success of accelerated food potato production in Central Java Province, Indonesia. The contribution of sweet potato consumption diversification program in Karanganyar Regency. production in Central Java Province was 10.67 %. The average annual growth rate for sweet potatoes in Karanganyar Regency is 3.81 %. 2 Methods Table 2. Production (t) of sweet potatoes in Karanganyar The data and information used in this paper were derived from secondary data from various sources as well as a review of research in the field of food diversification.